Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A3C514

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N342DN · AIRBUS A-321 · operated by UMB BANK NA TRUSTEE

Hex
A3C514
Octal
50742424
Decimal
10,732,820
Country
US
Tail
N342DN
Type
A321
No current signal · last broadcast Jul 26, 22:10 UTC
Flights observed
592
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:10 UTC

Last known position

Most recent position reported by Mode-S A3C514.

Country allocation

The ICAO 24-bit address A3C514 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
DAL2401 - 9 2026-07-14
DAL1512 Delta Air Lines 8 2026-07-02
DAL1341 Delta Air Lines 8 2026-07-23
DAL1332 Delta Air Lines 8 2026-06-27
DAL2209 Delta Air Lines 7 2026-04-18
DAL1266 Delta Air Lines 7 2026-04-21
DAL1169 - 7 2026-07-04
DAL2397 Delta Air Lines 6 2026-05-18
DAL1594 Delta Air Lines 6 2026-05-22
DAL1497 Delta Air Lines 6 2026-07-08
DAL1271 - 6 2026-07-04
DAL959 Delta Air Lines 5 2026-05-24
DAL399 - 5 2026-06-25
DAL2999 Delta Air Lines 5 2026-06-17
DAL2890 Delta Air Lines 5 2026-05-22
DAL2322 Delta Air Lines 5 2026-06-11
DAL2309 Delta Air Lines 5 2026-04-18
DAL1572 Delta Air Lines 5 2026-06-30
DAL1460 Delta Air Lines 5 2026-06-06
DAL1311 - 5 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2928 ALB → ATL Jul 26, 20:35 UTCJul 26, 22:10 UTC1h 35m
2026-07-26 DAL2779 LGA → BOS Jul 26, 17:05 UTCJul 26, 19:10 UTC2h 5m
2026-07-26 DAL2432 LAX → SFO Jul 26, 12:20 UTCJul 26, 14:25 UTC2h 5m
2026-07-25 DAL1946 SJU → ATL Jul 25, 23:45 UTCJul 26, 01:10 UTC1h 25m
2026-07-25 DAL1946 SJU → ATL Jul 25, 22:00 UTCJul 25, 22:15 UTC15m
2026-07-25 DAL1946 SJU → ATL Jul 25, 20:10 UTCJul 25, 20:30 UTC20m
2026-07-25 DAL1946 SJU → ATL Jul 25, 17:15 UTCJul 25, 18:35 UTC1h 20m
2026-07-25 DAL2777 DTW → ATL Jul 25, 13:50 UTCJul 25, 15:10 UTC1h 20m
2026-07-25 DAL1388 SLC → AUS Jul 25, 10:15 UTCJul 25, 11:30 UTC1h 15m
2026-07-25 DAL2839 DTW → RDU Jul 25, 01:50 UTCJul 25, 03:00 UTC1h 10m
2026-07-24 DAL1478 PBI → BOS Jul 24, 22:35 UTCJul 25, 00:05 UTC1h 30m
2026-07-24 DAL414 LGA → ATL Jul 24, 19:10 UTCJul 24, 21:00 UTC1h 50m
2026-07-24 DAL414 LGA → ATL Jul 24, 19:06 UTCJul 24, 20:55 UTC1h 49m
2026-07-24 DAL414 LGA → ATL Jul 24, 16:00 UTCJul 24, 17:45 UTC1h 45m
2026-07-24 DAL1106 PDX → MSP Jul 24, 13:10 UTCJul 24, 14:30 UTC1h 20m
2026-07-23 DAL1058 JFK → LAX Jul 23, 23:15 UTCJul 24, 00:30 UTC1h 15m
2026-07-23 DAL1341 JFK → MIA Jul 23, 20:25 UTCJul 23, 21:45 UTC1h 20m
2026-07-23 DAL1341 JFK → MIA Jul 23, 17:10 UTCJul 23, 18:35 UTC1h 25m
2026-07-23 DAL2899 RDU → BOS Jul 23, 13:40 UTCJul 23, 15:30 UTC1h 50m
2026-07-22 DAL1170 SLC → AUS Jul 22, 23:20 UTCJul 23, 01:10 UTC1h 50m
2026-07-22 DAL2279 ATL → PHL Jul 22, 20:10 UTCJul 22, 21:50 UTC1h 40m
2026-07-22 DAL2279 ATL → PHL Jul 22, 15:45 UTCJul 22, 17:20 UTC1h 35m
2026-07-22 DAL1066 JFK → AUS Jul 22, 11:55 UTCJul 22, 13:55 UTC2h 0m
2026-07-21 DAL1465 BOS → SEA Jul 21, 20:15 UTCJul 21, 22:10 UTC1h 55m
2026-07-21 DAL2650 BOS → BNA Jul 21, 17:30 UTCJul 21, 18:45 UTC1h 15m
2026-07-21 DAL2650 BOS → BNA Jul 21, 14:40 UTCJul 21, 15:50 UTC1h 10m
2026-07-21 DAL2579 ONT → SEA Jul 21, 11:20 UTCJul 21, 12:45 UTC1h 25m
2026-07-20 DAL2928 ALB → ATL Jul 20, 21:30 UTCJul 20, 23:05 UTC1h 35m
2026-07-20 DAL2928 ALB → ATL Jul 20, 21:29 UTCJul 20, 22:58 UTC1h 29m
2026-07-20 DAL1030 MCO → ATL Jul 20, 19:03 UTCJul 20, 20:06 UTC1h 3m
2026-07-20 DAL1030 MCO → ATL Jul 20, 19:05 UTCJul 20, 20:10 UTC1h 5m
2026-07-20 DAL1030 ATL → MCO Jul 20, 16:10 UTCJul 20, 17:10 UTC1h 0m
2026-07-20 DAL2328 - Jul 20, 13:55 UTCJul 20, 14:40 UTC45m
2026-07-20 DAL2328 JAX → ATL Jul 20, 13:53 UTCJul 20, 14:38 UTC45m
2026-07-20 DAL2328 - Jul 20, 11:35 UTCJul 20, 12:20 UTC45m
2026-07-20 DAL374 SFO → BOS Jul 20, 00:25 UTCJul 20, 02:05 UTC1h 40m
2026-07-19 DAL374 SFO → BOS Jul 19, 21:05 UTCJul 19, 22:50 UTC1h 45m
2026-07-19 DAL1153 RSW → ATL Jul 19, 17:30 UTCJul 19, 19:15 UTC1h 45m
2026-07-19 DAL1153 ATL → RSW Jul 19, 14:40 UTCJul 19, 16:05 UTC1h 25m
2026-07-19 DAL2950 - Jul 19, 10:00 UTCJul 19, 11:20 UTC1h 20m
2026-07-18 DAL2928 ATL → BWI Jul 18, 23:20 UTCJul 19, 00:50 UTC1h 30m
2026-07-18 DAL1437 BOS → ATL Jul 18, 18:55 UTCJul 18, 20:05 UTC1h 10m
2026-07-18 DAL1437 BOS → ATL Jul 18, 16:05 UTCJul 18, 17:15 UTC1h 10m
2026-07-18 DAL1592 BWI → ATL Jul 18, 13:10 UTCJul 18, 14:30 UTC1h 20m
2026-07-18 DAL1592 BWI → ATL Jul 18, 13:09 UTCJul 18, 14:27 UTC1h 18m
2026-07-18 DAL1257 ATL → BWI Jul 18, 01:20 UTCJul 18, 02:45 UTC1h 25m
2026-07-17 DAL1372 MCO → ATL Jul 17, 22:25 UTCJul 17, 23:30 UTC1h 5m
2026-07-17 DAL1372 ATL → MCO Jul 17, 17:09 UTCJul 17, 18:25 UTC1h 15m
2026-07-17 DAL1052 MSP → ATL Jul 17, 13:40 UTCJul 17, 15:40 UTC2h 0m
2026-07-17 DAL1052 MSP → ATL Jul 17, 13:37 UTCJul 17, 15:37 UTC2h 0m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N342DN page for operator, model, and routing details .

Mode-S A3C514 frequently asked

What is Mode-S code A3C514?
A3C514 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N342DN.
Where is Mode-S A3C514 registered?
Mode-S code A3C514 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A3C514 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3C514, octal 50742424, decimal 10,732,820.
What flights does A3C514 operate?
Mode-S A3C514 has broadcast 20 distinct callsigns, including DAL2401, DAL1512, DAL1341, DAL1332, DAL2209.